Flatiron health Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Demonstrate concise leadership
You receive feedback that in case interviews you ask many clarifying questions, take a few seconds before answering, and your answers are not concrete...
Build a robust ML pipeline
You inherit an ML pipeline that predicts next-7-day churn for users, but data quality is inconsistent and feature drift is suspected. A) Propose an en...
Design success and guardrail metrics
You are launching a new recommendation module on a content platform. Design a metrics framework and an experiment plan. A) Define one primary success ...
Compute sample size and significance
You are planning a two-variant A/B test with equal allocation and a binary primary metric (conversion). Baseline rate p0 = 0.045. You want to detect a...
Write SQL window functions for streaks
Assume today is 2025-09-01. Using standard SQL (e.g., PostgreSQL), answer the following using window functions only (no procedural loops, no correlate...
Compute churn metrics and rank top students
You have two tasks. Part A (R): You receive a Customers CSV with columns: id (INT), signup_date (YYYY-MM-DD), last_active_date (YYYY-MM-DD), churned (...